Brake-shoe.



0(1). PETTIS.

' BRAKE SHOE. APPLICATION rum) JULY 21, 1913.

1,100,094, 1 Patented June 16, 1914.

W Hill l CLIFTON D. PETTIS, OF RIDG'EWOOD, NEW JERSEY.

BRAKE-SHOE.

I Specification of Letters Patent.

Application filed July 21, 1913.

Patented June 16, 1914-.

Serial No. 780,314.

To all whom it may concern.-

Be it known that I, CLIFTON D. PETTIS, a citizen of the United States,and a resident of Ridgewood, county of Bergen, State of New Jersey, haveinvented certain new and useful Improvements in Brake-Shoes, of which Ido declare the following to be a full, clear, and exact description.

This invention has relation to that class of brake shoes in whichductile metal parts are employed for reinforcing or strengthening theshoe. An example of this type of brake shoe is illustrated in UnitedStates Letters Patent No. 1,065,716, granted to me June 24, 1913.

The invention consists in the features of novelty hereinafter described,illustrated in the accompanying drawing and more particularly pointedout in the appended claims.

Figure 1 is a view in side elevation of a brake shoe embodying myinvention. Fig. 2 is a plan view. Fig. 3 is a view in centrallongitudinal section on line 33 of Fig. 2, the body of the brake shoebeing omitted. Fig. 1 is an inverted plan view of the panshaped back orshell of the shoe. Fig. 5 is a view in cross-section on line 55 of Fig.2. Fig. 6 is a view in cross-section on line 66 of Fig. 2.

In the drawings, 10 designates the body of a brake shoe preferablyformed of cast metal, although other suitable material may be used forsuch purpose.

At the back of the body 10 of the brake shoe and connected thereto inthe casting operation (if cast metal be employed) is the pan shapedshell or back 11 preferably formed from a thin plate of ductile metal.

Adjacent the ends of the pan shaped back or shell 11 are formed theholes 12 and 13, and adjacent the center of the back or shell 11 areformed the holes 14:.

Within the pan shaped back or shell 11 are placed the supplementalreinforcing rods or bars that are preferably formed from round wire bentin manner hereinafter described. In the preferred form of my invention,I employ two sets of rods or wires 15 and 16 that overlap each other atthe central portion of the shoe. The wires 15 have formed integrallywith their inner ends, the upstanding U-shaped loop 17 while the wires16 have formed integrally with their inner ends, the upstanding U-shapedloop 18. The free ends of the wires 15 have formed integral therewith,the upstanding portions 19 (see Figs. 1 and 5), the laterally turnedportions 20, the inwardly turned portions 21, the downwardly bentportions 22 and the inwardly bent ends 23. Similarly, the free ends ofthe rods or wires 16 have the outwardly bent portions 19, the laterallyturned portions 20 the inwardly turned portions 21 the downwardly turnedportions 22 and the inwardly bentends 23".

In connecting the rods or wires 15 and 16 to the back or shell 11, thesewires will be first formed as straight, U-shaped links and their freeends will first be passed through the central holes 14 of the back orshell 11, after which the wires 15 and 16 will be bent at substantiallyright angles to the U-shaped loops 17 and 18 and will be extended alongthe inner face of the pan or shell 11. The free ends of the wires 15 and1.6 will then be passed outward through the holes 12 adjacent the endsof the pan or shell 11, after which the wires willbe bent, as shown inFigs. 1 and 2, the free ends of the wires being passed downwardlythrough the holes 13 of the pan or shell 11, and the free ends of thewires will be bent inwardly, as indicated by dotted lines in Fig. 2, andas shown by full lines in Figs. 3 and 5. When the parts are thusassembled, the wires 15 and 16 will be securely interlocked with theback orshell 11 and the end and center portions of the wires will form,respectively, the end and center lugs of the shoe. WVith the parts thusassembled, the pan or shell will be placed within the mold and the castmetal to form the body of the shoe will be poured and will securelyinterlock with the pan or shell and with the wires.

My present invention affords an extremely simple and effectiveconstruction of reinforced brake shoe and, inasmuch as the center andend lugs are integral with the reinforcing bars or wires 15 and 16, alldanger of the separation of the body of the shoe from the lugs iseffectively guarded against.

It is obvious that the precise details of construction above set out maybe varied without departing from the spirit of the invention and thatfeatures of the invention may be employed without its adoption as anentirety.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. A brake shoe comprising a cast metal body and two sets of reinforcingrods within said body, each set of rods extending from adjacent one endof the shoe to a point beyond the center thereof and having an upturnedU-shaped bend, the central portion of both members of one set of rodsbeing located within the central portion of the other set of rods.

2. A brake shoe comprising a body and reinforcing rods extendinglengthwise of said body, said rods having their outer ends formed withL-shaped angular bends extending above the back of the shoe and formingboth the longitudinal and transverse portions of the end attaching lugs.

3. A brake shoe comprising a body and reinforcing rods extendinglengthwise of said body to points adjacent the ends of the shoe, the endportions of said rods being bent upwardly above the back of the shoe and'transverselyof the shoe at each side of the longitudinalcenter thereofto form lugs for arresting the end thrust of the brake head.

4. A brakeshoe comprising a body and reinforcing rods extendinglengthwise of said body to points adjacent the corners thereof, saidrods having portions bent upward above the face of the shoe adjacentsaid corners and inwardly transversely of the shoe to form lugs forreceiving the end thrust of the brake head.

5. A brake shoe comprising a body, a ductile metal back having holestherein and reinforcing rods extending lengthwise of the body, inside ofsaid back, said rods being substantially the size of said holes andpassing outwardly therethrough beyond said back.

6. A brake shoe comprising a body, a perforated ductile metal back, rodsextending lengthwise inside of said back, said rods passing outwardlythrough the perforated back and bent to form an attaching lug for theshoe.

- 7. A brake shoe comprising a body provided with a ductile metal backhaving holes adjacent its ends and adjacent its center, and rods locatedwithin said back, portions of said rods extending through the holes ofthe back to form attaching lugs.

8. A brake shoe comprising a body provided with a ductile metal backhaving holes adjacent its center and ends and rods located within saidback, the central portions of said rods extending through the centralholes of the back to form a center lug, and the ends of said rodspassing through the end holes of said back and bent to form end lugs.

9. A brake shoe comprising a body provided with a ductile metal backhaving holes therein adjacent its center and ends, rods located withinsaid back, the central portions of said rods extending through thecentral holes of the back and bent to form a central lug, and the endportions of said rods passing through said back and provided withL-shaped angular bends to form the end lugs of the shoe.

10. A brake shoe comprising a body provided with a ductile metal backhaving holes therein adjacent its center and ends, rods located withinsaid back, the central portions of said rods extending through thecentral holes of the back and bent to form a center lug, the endportions of said rods passing through said back and provided withL-shaped angular bends to form the end lugs of the shoe, and the extremeends of said rods being passed through the back and bent inside thereofto interlock with the back.

CLIFTON D. PETTIS. Witnesses:

GEO. P. FISHER, J. G. ANDERSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

- Washington, I). G.

